Thank you for contacting WPML Support, I will be happy to help you.
In order to expedite handling your support requests, can you please share WPML support debug information from your site?
* To provide the debug information:
- Go to WPML -> Support, in there click on the “debug information” link at the bottom of the page.
- Once on the “debug information” page, select the entire text box content and copy it.
- Go back to our support forum, find the debug information box, and paste it.
More information on the link: https://wpml.org/faq/provide-debug-information-faster-support/
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Could you please try following the steps below and check if the issue persists after:
- Go to Plugins -> Add new -> Commercial tab and click the ‘Unregister WPML from this site’ link if that link exists.
- Then please click the ‘Register WPML’ link.
- Click the ‘Get a key for this site’ link.
- It will generate the Key for your site.
- Copy the key and paste it back to the input box and press the Register button.
- After that, please try to update WPML plugins.